Vaporizer for hydrocarbon-engines.



No. 759,624. PATENTED MAY 10, 1904.

J. J. MAGMULKIN- VAPORIZER POR HYDROUARBON ENGINES.

APPLICATION FILED DBO. s, 1903.

no MODEL. 2 sums-sum 1 ATTORNEYS No. 759,624. PATENTED MAY 10, 1904. J. .T. MAOMULKIN- VAPORIZER FOR HYDROGARBON ENGINES.

APPLICATION FILED DEC. 8, 1903.

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UNITED STATES Patented May 10, 1904.

PATENT OEEIcE.

JOHN J. MACMULKIN, OF LONG ISLAND CITY, NEW YORK, ASSIGNOR TO THE DAIMLER MANUFACTURING COMPANY, OF LONG ISLAND CITY, NEIV YORK, A CORPORATION OF NEW YORK.

VAPORIZER FOR HYDROOARBON-ENGINES.

SPECIFICATION forming part of Letters Patent No. 759,624, dated May 10, 1904.

Application fil d December 8, 1903. Serial No. 184,320. (No model.)

To ctZZ whom it mag concern.-

Be it known that 1, JOHN J. MAoMnLKIN, a citizen of the United States of America, residing in Long Island City, in the county of Queens, State of New York, have invented an Improved Vaporizer for Hydrocarbon Engines, of which the following is a specification.

The main object of this invention is to pro- Vide a vaporizer for hydrocarbon motors which will allow the throttling of the explosive mixture and at the same time maintain the proper proportion of the air and gas, so that an engine may be run at high, interme diate, or low speed. This object I accomplish by providing a plurality of liquid-hydrocarbon-feed inlets and air-inlets all leading to a common outlet to convey the vaporized mixture to the motor-cylinder and means for shutting oil or opening as many of these com- I bined hydrocarbon and air supplies as may be desired.

In the accompanying drawings, Figure 1 is a plan of myimproved vaporizer and a hydrocarbon-feed device. Fig. 2 is a side elevation thereof. Fig. 3 is a central longitudinal scctional view. Fig. 4 is a vertical section on line 4 4, Fig. 3. Fig. 5 is a development of the surface of my preferred form of valve. Fig. 6 is a sectional detail of the hydrocarboninlet. Fig. '7 is an inverted plan view of the plug, and Fig. 8 is a plan of a regulatingslide.

As shown in the drawings, R is afloat-valve chamber of well-known construction adapted to keep the level of the liquid hydrocarbon up to about the line 0 r, as shown in Fig. 3. B is the body part of the vaporizer, having chambers O, O, O and O" separated from each other by walls w. Each chamber has an air-inlet opening O O &c. A nozzle t t", &c., projects up into the mixing-chamber A A &c., from the hydrocarbon-feed pipe 39.

The nozzles t, &c., are formed each with a cone-shaped mouth 0 0 &c., having a cylindrical opening 0 c, &c., immediately below, ending in a central threaded hole h m, &c., of reduced diameter. Around this central threaded hole are small feed-openings f f 8110. A plug P P, &c., having a coneshaped upper part and a shank threaded at its lower end, is adapted to fit in the nozzle t, &c., so as to prevent passage of hydrocarbon except through grooves g &c., of properly-determined size in the wall of the coneshaped plug P, &c.

Immediately above the plug I have shown each chamber A A &c., provided with an opening 0 0 &c., with which can be made to register a port Z Z, &c., in a throttlewalvc V, rotating in its valve-casing O, secured to the body part B. Between the body part Band valve-casing C, I prefer to place a removable perforated plate I), so that on using hydrocarbons of different qualities one such plate may be withdrawn and be replaced by aplatc having more or fewer openings, so as to rcgulate the supply according to the quality of the liquid hydrocarbon used.

An outlet-pipe S leads from the valve-casing O to convey the vaporized mixture to the motor-cylinder. The valve V is ahollow cylinder provided with a shaft s, controlled by a lover or lovers or any suitable means.

The cylinder has a large outlet-port L, open in all operative positions to the outlet-pipe S to the motor. The valve V also has four other ports Z Z Z Z, adapted on the rotation of the valve to open communication between more or fewer of the mixing-chambers O, &c. and the common outletpipe S. Port Z is elongated to occupy a greater circiunferential distance on the barrel than port Z, while port Z is less than Z and port Z is still less in area, as seen in Fig. 5. It thus follows that by turning the valve port Z alone may be opened, or ports Z and may be opened, or ports Z Z Z" may be opened, or all the ports may be opened to allow varying quantities of air and hydrocarbon to be vaporized andpass to the motor.

In operation, suppose the valve V to be in the position shown, with the port Z alone open, liquid hydrocarbon occupying a position as shown by line 1' 2', which is determined by the float-valve in chamber R, level with the top of the grooves in the plugs without overflowing. At the port Z the suction acts to draw the liquid upward, at the same time drawing air into the chamber A, where it mixes with and vaporizes the liquid, the vaporized mixture passing to the motor. If higher speed is wanted, the valve V is rotated to open the port Z also, so that the quantity of oil and of air drawn in and vaporized are proportionately increased. In like manner the feed of liquid and air increase proportionately upon the progressive movement of the valve to open more ports to the mixing-chambers, thus insuring the maintenance of proper proportion between the two elements of the mixture.

I claim as my invention 1. A vaporizer for liquid hydrocarbons, comprising a plurality of liquid-hydrocarbon inlets, plurality of air-inlets, an outlet for the vaporized mixture, and a valve having a plurality of ports for simultaneously cutting off more or fewer of the hydrocarbon-inlets and air-inlets, substantially as described.

2. A vaporizer for liquid hydrocarbons, comprising a number of hydrocarbon-inlets, a separate air-inlet to each hydrocarbon-inlet, a common outlet-pipe and means for cutting off one or more of the pairs of hydrocarbon-inlets and air-inlets simultaneously, substantially as described.

3. A vaporizer for liquid hydrocarbons, comprising a number of inlets for hydrocarbon and means at all times to supply a constant flow to each inlet, an air-supply to each said inlet, an outlet for the vaporized mixture and a throttlevalve between the individual inlets and the outlet adapted to cut off or open more or fewer of the combined air and hydrocarbon inlets, substantially as described.

4. A vaporizer for liquid hydrocarbons,coniprising an outlet-pipe, a throttle-valve opening thereto, a body part containing a plurality of chambers, a separate passage from each chamber to the throttle-valve and an air-supply and a hydrocarbon-supply to each chamber, the throttle-valve being adapted to cut off more or fewer of the chambers from the outletpipe, substantially as described.

5. A vaporizer for liquid hydrocarbons, comprising a body part containing a plurality of chambers, separated from each other, a nozzle with a plug in each chamber having grooves of constant and predetermined size, means for feeding hydrocarbon to said grooves, air-inlets to the chambers, a valve having ports for registering with one or more chambers and a common outlet-pipe from the valve, substantially as described.

6. Avaporizer for liquid hydrocarbons,comprising a common outlet-pipe,a throttle-valve opening thereto, a body part containing a plurality of chambers, a separate passage from each chamber to the throttle-valve, and an airsupply and a hydrocarbon supply to each chamber, ports in the throttle-valve adapted to cut ofl more or fewer of the chambers from the outlet-pipe, and a removable perforated plate between the chambers and valve, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN J. MAoMULKIN.

Witnesses:

M. H. RICHARDSON, (J. M. BOUGGY. 

